[GRASS-dev] Re: [GRASS GIS] #431: vector operations crash in 64bit OSX

Hamish hamish_b at yahoo.com
Mon Mar 2 17:57:45 EST 2009

William wrote:
> I suppose you may get a little speed, but I thought 64bits
> was more about volume, or more accessible memory.  As I
> understand it, the 32bit mode on 64bit Intel processors
> isn't really much slower, if at all, than 64bit.  This
> is certainly true for PPC processors, those have been 64bit
> from the start and 32bit 'mode', used in OSX before
> Leopard, is designed to be just as fast.

64bit has to push around and allocate twice the volume of bits to get
the same job done. the advantage is that it can handle jobs which are
too big for a 32bit address space.



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